Derrick.



H. I. DE VRIES.

DERR|CK.

m APPLICATION FILED JUNE 29,1914. 1,1 (5,617, Patented Mar. 14,1916.

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H. I. DE VRIES.

nEHmcK. APPLICATION FILED IUNE 2931914. 'I 1,1?59617, Patented Mar. 14,1916.

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H. I. DE VRIES.

DERRICK.

APPLICATION FILED IUNE29. I9I4.

1,1 75 I. '7 Patented Mar. 14, 1916.

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W1 TNESSES: IN VEN TOR.

II. I. DE VRIES.

DERRICK.

APPLICATION FILED IuNE29. 1914.

Patented Mar. 14, 1916.

WITNESSES:

HENRY J. DE VRIES, or BURHGAME,

can-Ircam Denman.

Specification of Letters Patent.

Application led .Tune 29, 1914. Serial No. 847,967.

To all whom it may concern:

Be it known that I, HENRY J DE VRIES, a citizen of the United States,residing at Burlingame, in the county of San Mateo and State ofCalifornia, have invented a new and useful Derrick, of which thefollowing is a specification in' such full and clear terms as willenable those skilled in the art to construct and use the same.

time .partially This invention relates to a derrick and bucket thereforand its object is-to provide means whereby the bucket may be used forscooping up sand, gravel or earth more effectively by having the weightof the derrick, boom, mast and car transferred thereto.

It will be understood that with the ordinary grabbing bucket, the bucketalone forms the means for holding the bucket down on the material to beclosed, the closing operation necessarily partially lifting the bucketand thus decreasing its eifectiveness.

This invention is for the purpose of either handling a grabbing bucketor any other form of bucket and for either loading it or closing thebucket Without at the samelifting the same, the weight of the boom andmast being made effective to hold the bucket down by means of a handleto which the bucket is pivoted-or otherwise secured.

Vhile one form of bucket has been shown it will be clear that severalforms thereof` may be used if desired.

Another object of the invention is to produce a bucket and derrickcapable of propelling itself along a car'to 4completely unload thematerial at each end of the car, the bucket being reversed in positionwhen necessary to finish the unloading. The

truck is also provided with means for propelling it along. y y 'Anembodiment of the invention is shown in the drawing in which the samereference numeral is` applied to the same portion throughout. but I amaware that there are many modifications therefor.

Figure 1 is a side elevation of a portion of the derrick car, the mastand boom of the derrick, Fig. 2 is a side elevation of the derrick car.a portion of the mast and boom being broken away for purposes ofillustration` Fig. 3 is an end elevation of the derrick looking towardthe car from a position beyoud the bucket, Fig. 4 is a side elevation ofthe derrick carrier throughvwhich the and pulleys for loading the whenthe bucket isA bucket handle passes, Fig. 5'is an end elevation of thecarrier shown in Fig. 4, the boom being shown insection, Fig. 6 is a,plan view of the carrier, Fig. 7 is a view of the lower end of thebucket handle show- 1ng the position of the bucket bail, the raising andlowering pulleys, and the cables 0 bucket, Fig. 8 1s a view of the clampwhich passes around the boom for the support thereof and the device forlocking said clamp in a given position, Fig. 9 is a side elevation ofthe locking clamp shown in Fig. 8 and Fig. 10 is a plan view showing therelation of the truck, shovel and car.

The numeral 1 represents the truck wheels upon the axles of which ismounted the bed 2. This bed is made suitably heavy and is for the mast5, said mast being suitably se cured theretol and being braced with aseries of braces, 6, said .bearings being suitably heavy to supportseveral tons.

The mast is prevented from being dislodged from the body of the drum bymeans of the large washer 7 properly secured thereto on its lower` end.In order to further brace the mast, a plate 8 is pivoted on the upperend of the mast so that it can turn ina horizontal plane. This plate hascables 10, 10', 11 and 11 connected thereto, which cables are in turnconnected with the rear end and side of the car. A shiftable cable 11"connects the mast with either corner of the car.

On the upper portion of the mast there is a heavy strap l2, said straphaving the boom 13 pivoted thereto for movement in a vertical plane. Theboom is raised and lowered by means of the cable 14, which cable isconnected with the bail 15 and passes over a pulley 16 at the top of themast, the cable iin'ally passing over the drum 17 within convenientreach of the operator, said drum having a crank handle 18 to wind andunwind said cable, a pawl 19v being used to hold the cable in anydesired position. Y

inasmuch as it is desired to transfer some lof the weight of the mastand car to the at one end on the strap 21, which passes Patented Mar.ia, raie.

i with a cable of the brace l around the mast and is pivoted at itsupper end to the `sliding clamp 22. Two side plates 23 are bolted to theupper kend of the brace 2O and are long enough to permit the hoistingcable to pass between thev end and the boom in whatever position theboom may occupy. .Y

ln order to prevent the clamp 22 from sliding along the boom when theshovel is being operated, an eccentric 24 is pivoted thereto throughdepending ears 25. This eccentric is so pivoted that the spring 26 willlock it on the boom in any desired position, while the cable 27 passingover pulleys 28 and 29 has a handle 30 within convenient reach of theoperator to enable him to release the clamp when it is desired to shifta higher or lower position.

The mast is rotated by means of the pinion 32 loose on the shaft 33..AThis shaft has a double clutch member 38 operated to engageeither gear35 or 36 by means of the handle 39 pivotedto the stand 34, a clutchmember 38 to` engage the pinion 32 and a clutch member 38 to engage thesprocket wheel 110. The clutches 38 and 38" are operated by the handles39 and 39 respecthe` boom to tively. It is thus possible to drive eitherof .the gears 32 independently.

The boom is slotted at its forward end for the purpose of supporting thecarriage 41. This carriage has four transverse shafts 42, 43, 44 and 45,each of which has two wheels 46 ,thereon'to contact with the upper andlower sides of the boom to hold the carriage orllO in either direction Ain theproper place to enable it. to be moved back and forward with theleast friction.

The shaft 42 is further provided with two pulley wheels 49 and 49', overone of which the cable 50 passes, while the shaft 45 has two pulleywheels 49a and 49h, over one of which the cable 51 passes, said cablesbeing joined to the cable 53 at such a distance from the pulleys` 49 aswill enablethe bucket to be properly raised or lowered for loading andunloading. The shaft 43 is provided pulley 53 over which the hoistlngcable 53 passes, said pulley having the necessary clearance between thebucket handle and its periphery to allow the cable to pass through.A

The lower end of the bucket-handle is slotted as indicated in Fig. 3 at54 and the pulley 57 is revoluble therein on the pin 56, around whichpulley the hoisting cable passes. The bucket handle extends below thepulley 57 and is pivoted to the bucket bail by means of the bolt 57. Theend yof the hoisting cable passes up to and is connected with a hole -58in the end of the carriage.

The carriage has fixed serrated jaws 67 and 68 for gripping the shovelhandle 48,

yover `a pulley similarly journaled back and forth each of which is heldin place by means of two heavy spiral springs 69. The object of this isto hold the handle central while permitting it to be grippedand heldfrom risinglwhen moved oil' at an angle to the vertica rlhe mast issupported in a well known the rotation thereof, and from thence to thehoisting drum 78.from the pulleys -79 and 79. The cable 53 passes undera pulley 82 journaled in depending brackets 76. below the bottom of themast. The cable 53 passes at the upper portion of the mast and downthrough the mast and under a pulley 79 journaled in depending brackets76 and to a pulley 83 journaled in brackets 84 and thence to thehoisting drum 85.

The hoisting engine 86 is supplied with power from the boiler 87 and isconstructed in a well known manner to provide means whereby the drums 78and 85 maybe driven while sepa-rated or atl the necessary speed withrespect to each other as may be required for an object which will belater explained, but which engine and hoisting apparatus form no part ofthe present invention and is therefore merely diagrammaticallyindicated.

The cables 50 and 51 pass over pulleys 88 and 89 journaled on a strap 90surrounding the 'shovel handle and at such a distance from the lowerbucket to be raised to the position indicated in Fig. 7 In order toprevent the shovel handle from dropping down too low and passing outfrombetween the guides therefor, a plate 91 is bolted to the top thereof.

In order that the carriage maybe shifted along the boom a pulley 92 ispivoted to the end of the boom at the top thereof in the bracket 93, acable 94 passing thereover and having one end connected t'o the carriage41. This cable passes over a pulley 95 on the mast and down to the handdrum 96, said hand drum having a crank 97 for operating the same andbeing held in a given position by means of the pawl 98.

It will be observed that the boom may be raised and lowered by means ofthe cable 14 and the carriage moved inwardly and downwardly thereoncomparatively easily by resting the shovel on the ground so that thecables 14 and 94 may be hand operated, while of course the cables 53 and53 are end thereof as tov enable the y power operated for the loa dingof the shovel and for the hoisting thereof.

The shovel comprises a skip-like scoop 99 having a rigid bail 100 at oneend and having holes for the hooks 101 and 102 at its open end. lt willbc observed that this shovel may be reversed by simply changing itsposition and shifting the cables 5() and 51 from one side to the otherside of the carriage pulleys over which they pass, the strap 90enablingr the pulleys 88 and 89 to be shifted from one side to the otherside of the the shovel handle when necessary. It is also to be observedthat the size of the shovel handle with respect to the space throughwhich it passes through the carriage must be such as to enable it tohave considerable movement without injury to itself, so that the jaws 67and 68 are spaced far enough from the shovel handle to enable it to havea considerable amount of movement in angle.

The strap 90 is held in place by means of the collars 90 and 90'. on theshovel handle, but it may be rotated thereon. The object of this is tocnable'the bucket to be reversed in position so that the material ineach end of the car may be expeditiously removed therefrom. Thisreversal is accomplished by merely removing the bolt 57 swinging thepulleys in the strap 90 around to the opposite side of the bucket handleand changing the cables running to the front corners of the buckets tothe pulleys 49 and 49", whereupon the. bucket will be hoisted on thereverse side of the bucket handle.

The truck may be hauled Jfrom place to place and directed by attaching awagon to the pole 111, but when in use unloading cars it may be movedunder its own power from the sprocket wheel 110, the pole 111 being usedmerely to guide it. The wheel 110 has a chain 112 passing thereover andunder a wheel 113, below the truck. This wheel 113 is on a shaft 114journaled in a bearing 114 and in a casing 115 on the rear axle withinwhich is suitable gearing to enable the rear wheels to be turned todrive the machine forward or back.

The operation of the apparatus is as follows: The boom is raised andlowered by hand when the latch therefor is opened at a time when thebucket and handle therefor is resting upon the ground or upon the top ofthe material in the car, whereupon the boom may be raised by pullingupon the cable 14. The position of the carriage 41 may at the same timebe adjusted outwardly on the boom by pulling on the cable 94 whichpasses over the Winding drum 96, the hoisting cable 53 tending to drawthe carriage inwardly so as to keep the cable 94 taut.

1t will be observed that the mouth of the bucket stands at right anglesto the boom so that when the car is to be loaded the truck is placedalong side of the car and the boom turned over the car, whereupon thehoisting cable is manipulated to bring the mouth of the bucket down onthe material in a desired angle, the cables 50 and 51 being at that timeslacked over to permit the bucket to hang down. W'hen the bucket isdropped down on the material in the car the cable 53 may be Slacked overand the cables 50 and 51 are then drawn up so as to bring the bucket toa position to hold its load, while at the same time the bucket maybeslightly dragged across the car by rotating the mast and its turntable.

,When the bucket is loaded the mast and boom will be turned so thatV thebucket may be discharged into a Waiting wagon or bin as may be desired.When the car has been partially unloaded and one end thereof is free ofsand or gravel the bucket may be reversed in position, so that all ofthe material up to the end of the car may be removed therefrom. When thebucket is reversed the cables 50 and 51 are changed to the pulleys 48-49on the opposite side ot the carriage 41 from that shown in Fig. 1, Whilethe pulley support 90 is simply rotated 180 degrees and the cables againattached to the mouth of the bucket.

It will be observed that the hoisting cable 53 must be hauled in abouttwice as fast as the cable 53 so that the hoisting engine must besuitably geared for this purpose,v but that forms no part of the presentinvention.

ifVhen it is desired to move the apparatus in one direction or theother, the clutch member 38' is engaged with the sprocket wheel 110,whereupon the lever 39 may be shifted to engage the forward or backingbevel gear, thus driving the truck tothe front or rear as may berequired. It will be observed that one advantage of this bucket lies inthe fact that it can be loaded and unloaded by the man in charge of theengine without having anyone touching it in any way.

Itis of course understood that the mast is properly and securely steppedand stayed into place to prevent it from overturning.

It is to be observed that while the grips 66, 67 prevent the buckethandle 48 from rising when the bucket handle is pulled oi1 to one sideor the other of the boom that as soon as the bucket handle becomesvertical they no longer prevent it from rising and only act to assist inloading the bucket when the bucket handle is Working to one side or theother of the vertical.

Having thus described my invention what 1 claim as new and desire tosecure by Letters Patent of the United States, is as follows,modifications within the scope of the claims being expressly reserved:

1. 1n a derrick, a drum, a revoluble mast rotated in either direction, fed by the mast, a carriage l supported thereby a boom, means to adjustthe position of said boom, means to lock said boom in any givenadjustment, a carriage slidable on said boom, a bucket, a handle t`0which said bucket is pivoted, said handle extending through said movingsaid carriage along the boom, a, cable for raising and 'lowerin -thebucket, and bucket handle, and a dou le cable for loading the bucket.

2. In a derrick, a drum, a mast revoluble thereon, means whereby said-mast may be a boom supportslidable on said boom, means to change theposition of said carriage on said boom at will, a bucket, a handlepivoted to said bucket and extending through the carriage, means on saidcarriage to grip said handle, the bucket and for loading the same.

3. In a derrick, a drum, a mast revoluble thereon, a boom supported bysaid mast, a carriage slidable on the ln, a reversible bucket, a handleto which said bucket is pivoted and extending through said carriage, acable for raising and lowering said handle and bucket, other cables forloadin the bucket, and means whereby the loading cables may be operatedfrom either side of the carriage to enable the bucket to be loaded fromeither side of the handle.

4. In'a derrick, a drum, a. mast revolubly supported thereon, a boomcarried by said mast, and adjustable with respect thereto,

carriage, a cable for and cables for hoisting,

means to lock saidboom in any given ad` justment, a carriage, a cable,to adjust the ucket, a handle pivoted to said bucket, a, carried by saidhandle adjacent sald pulley a hoisting cable passing under said bucket,

ulley bucket, and other cables connected with the forward end of thebucket to enable the bucket to be loaded.

5. In a derrick, a drum, a revoluble mast thereon, means to rotate saidmast in either direction, a boom carried by the mast, means to adjustthe position ofsaid boom with respect to the mast, means to lock saidboom in any given adjustment, a carriage slidable along said boom, acable to hold said carriage in any given position on said boom, a.bucket, a handle pivoted thereto and extending through said carriage, acable for hoisting said handle and bucket, means on the carriage to gripthe bucket handle when it is moved out of the vertical, and meansextending to the front end ofthe bucket for loading the same.

In testimony whereof I have hereunto set my hand this 4 day to raise andlower the handle andV of November, A. 1)

1913, in the presence of the two subscribed witnesses.

HENRY'YJ. DE

Witnesses HARRY SINGLETON, vWILLIAM Fos'rMAN.

